LS Ecology Test 2 SG Name: 1. What is an individual? 2. What is a population? 3. What is a community? 4. What is an ecosystem? 5. What is the biosphere? 6. What is a limiting factor? a. Give some examples: b. How are predators limiting factors for prey? c. How are prey limiting factors for predators? 7. What is carrying capacity? a. Draw a graph showing population growth if there were no limiting factors: b. Draw a graph showing carrying capacity: c. Draw a realistic population graph. Label overpopulation and indicate where births are greater than deaths and vice-versa: 8. What is biotic potential? a. Can biotic potential be achieved? 9. What does it mean when a population is threatened? 10. What does it mean when a population is endangered? 11. What does it mean when a population is extinct? 12. How does the rate of population growth change as population size increases during exponential growth? 13. The only species able to increase the carrying capacity of its environment is 14. Why would better transportation lead to human population growth? 15. The role/job that an organism has in its habitat is called its 16. Where an organism lives is called its 17. What is a producer? 18. What is a consumer? 19. What is a decomposer? 20. What is a predator? 21. What is prey? 22. Mutualism (__/__) is a relationship in which 23. Parasitism (__/__) is a relationship in which 24. Commensalism (__/__) is a relationship in which 25. What is birthrate? 26. What is deathrate? 27. What is immigration? 28. What is emigration? a. Populations will grow if _____________________ and/or ___________________ are higher, and will decrease if ______________________ and/or _______________________ are higher. 29. What is the relationship between a population and a community?